How to calculate the total land area of a house
Accurately calculating the total land area of a house is a critical aspect in a real estate transaction, land planning, or home improvement. This article will introduce the calculation method in detail and provide structured data to help you quickly grasp the core points.
1. Definition of total land area of houses
The total land area of a house usually refers to the sum of the building area and the attached land area, including the house base, courtyard, passages, etc. The calculation of land may vary for different uses.
| Project | Calculation range | Remarks |
|---|---|---|
| House base area | Projection area of building exterior wall | Including balcony, external bay windows, etc. |
| Courtyard area | Available open space within the wall | Excluding public roads |
| channel area | Dedicated access channel | Proof of title required |
2. Detailed explanation of calculation method
1.Single plot calculation: Directly measure the length and width. The formula for a rectangular plot is:
Land area (㎡) = length (m) × width (m)
2.Compound plot calculation: It needs to be divided into regular geometric figures and calculated separately and then accumulated. Common division methods:
| Graphic type | Calculation formula | Example |
|---|---|---|
| Rectangle | length×width | 10m×8m=80㎡ |
| triangle | Bottom×height÷2 | 6m×4m÷2=12㎡ |
| trapezoid | (upper bottom + lower bottom) × height ÷ 2 | (5m+7m)×3m÷2=18㎡ |
3. Handling special situations
1.Slope calculation: Calculated based on horizontal projected area, slope >15° needs to be multiplied by the correction coefficient (usually 0.9-1.1)
2.Shared share: The area of public facilities is allocated according to the proportion of property rights. The calculation formula is:
Apportioned area = total public area × (private area/total private area)
| Common types | Apportionment method | Calculation basis |
|---|---|---|
| Elevator room | Evenly distributed according to the number of households | Property registration documents |
| underground garage | According to parking space ratio | House purchase contract stipulations |
| Green area | According to building area ratio | Property Management Measures |
4. Recommendation of measuring tools
Modern measurement technology can greatly improve calculation accuracy. A comparison of mainstream tools is as follows:
| Tool type | Accuracy range | Applicable scenarios |
|---|---|---|
| laser rangefinder | ±1.5mm | Accurate indoor measurement |
| GPS measuring instrument | ±0.3m | Large land area surveying and mapping |
| UAV aerial survey | ±0.1m | Complex terrain survey |
5. Legal Notes
1. The actual area should be based onreal estate registerThe records shall prevail. Self-measurement results are for reference only.
2. Land boundary disputes need to be resolved through surveying and mapping by professional agencies
3. Rural homesteads must comply with the local "one household, one house" area standard
Through the above structured data and calculation methods, you can systematically master the calculation essentials of house land area. It is recommended to entrust a professional surveying and mapping agency to review before important transactions to avoid property rights disputes.
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